Question

A parallelogram is transformed according to the rule (x, y) → (x, y). Which is another way to state the transformation?

a)R0, 90°
b)R0, 180°
c)R0, 270°
d)R0, 360°

Answer 1

The answer is R0, 360. It's in the same place. 

Answer 2

D) R0 , 360°

Step-by-step explanation:

We are given that the rotation is:

(x,y) --------> (x,y)

This means that the point is rotated back into its original position.

This means that full rotation occurred.

Since the full rotation is 360°, therefore, the correct answer is D

For the other options:

Rotation 90° gives:

(x,y) ----------> (-y,x)

Rotation 180° gives:

(x,y) ----------> (-x,-y)

Rotation 270° gives:

(x,y) ---------> (y,-x)

Hope this helps :)